Experimental Study on Compaction and Strength Characteristic of Wetland Fine Grained Soil

Abstract:

Through indoor the compaction test and unconfined compressive strength of compacted soil samples and CBR strength test, analyzes compaction characteristics of wetland fine grained soil and the change rule of compacted strength with compaction work and moisture content.The results show that under the same compaction work effect, when the soil moisture content is less than optimum moisture content,along with the increase of moisture content, dry density increases, when the soil moisture content is greater than the optimum moisture content, along with the increase of moisture content, dry density decreases and to a larger extent.When the compaction work is bigger, the soil dry density is bigger, the compaction strength is higher and the optimum moisture content is smaller.Strength decreases when under high moisture content condition, CBR value is relatively stable in the wet side of optimum moisture content.

• Periodical: Applied Mechanics and Materials (Volumes 256-259)
• Pages: 336-339
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.256-259.336
• Online since: December 2012
• Authors: Hong Xia Yang
• Keywords: Compaction Curve, Fine Grained Soil, Strength, Wetland

References

[1] Robert L. Parsons, Derek H. Foster, Stephen A. Cross compaction and settlement of existing embankments final report. University of Kansas, (2001).

[2] Shiji Yang. Highway Traffic Science and Technology, 1991, 4. (In Chinese).

[3] Guangyao Zhu. Heilongjiang Traffic Science and Technology, 1995, 3. (In Chinese).

[4] Test Methods of Soils Highway Engineering. (JTG E40-2007). pp.67-92. (In Chinese).

[5] Hua Li. The Family of Compaction Curves for Fine grained Soils and There Engineering Behaviors. University of Alberta. (2001).

[6] Faure A.G. Soil and Tillage Research. 1981, 1. pp.97-105.

[7] Faure A.G. and Da Mata J.D.V. ASCE Journal of Geotechnical Engineering, 1994, 20, pp.46-59.

[8] Holtz R.D. and Kovacs W.D. An Introduction to Geotechnical Engineering, Prentice Hall, Eagal wood Cliffs, New Jersey. (1981).

[9] Guanghui Shao, Nengsen Wu. Soil Mechanism and Foundation. People's Traffic Press. 2007, pp.30-32. (In Chinese).